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/////////////////////////////////////////////////////////////////////////
// $Id: eth_null.cc,v 1.13 2002/11/20 19:06:23 bdenney Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001 MandrakeSoft S.A.
//
// MandrakeSoft S.A.
// 43, rue d'Aboukir
// 75002 Paris - France
// http://www.linux-mandrake.com/
// http://www.mandrakesoft.com/
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// eth_null.cc - skeleton code for an ethernet pktmover
// Various networking docs:
// http://www.graphcomp.com/info/rfc/
// rfc0826: arp
// rfc0903: rarp
// Define BX_PLUGGABLE in files that can be compiled into plugins. For
// platforms that require a special tag on exported symbols, BX_PLUGGABLE
// is used to know when we are exporting symbols and when we are importing.
#define BX_PLUGGABLE
#include "bochs.h"
#if BX_NE2K_SUPPORT
#define LOG_THIS bx_devices.pluginNE2kDevice->
//
// Define the class. This is private to this module
//
class bx_null_pktmover_c : public eth_pktmover_c {
public:
bx_null_pktmover_c(const char *netif, const char *macaddr,
eth_rx_handler_t rxh,
void *rxarg);
void sendpkt(void *buf, unsigned io_len);
private:
int rx_timer_index;
static void rx_timer_handler(void *);
FILE *txlog, *txlog_txt, *rxlog, *rxlog_txt;
};
//
// Define the static class that registers the derived pktmover class,
// and allocates one on request.
//
class bx_null_locator_c : public eth_locator_c {
public:
bx_null_locator_c(void) : eth_locator_c("null") {}
protected:
eth_pktmover_c *allocate(const char *netif, const char *macaddr,
eth_rx_handler_t rxh,
void *rxarg) {
return (new bx_null_pktmover_c(netif, macaddr, rxh, rxarg));
}
} bx_null_match;
//
// Define the methods for the bx_null_pktmover derived class
//
// the constructor
bx_null_pktmover_c::bx_null_pktmover_c(const char *netif,
const char *macaddr,
eth_rx_handler_t rxh,
void *rxarg)
{
#if BX_ETH_NULL_LOGGING
// Start the rx poll
this->rx_timer_index =
bx_pc_system.register_timer(this, this->rx_timer_handler, 1000,
1, 1, "eth_null"); // continuous, active
this->rxh = rxh;
this->rxarg = rxarg;
// eventually Bryce wants txlog to dump in pcap format so that
// tcpdump -r FILE can read it and interpret packets.
txlog = fopen ("ne2k-tx.log", "wb");
if (!txlog) BX_PANIC (("open ne2k-tx.log failed"));
txlog_txt = fopen ("ne2k-txdump.txt", "wb");
if (!txlog_txt) BX_PANIC (("open ne2k-txdump.txt failed"));
fprintf (txlog_txt, "null packetmover readable log file\n");
fprintf (txlog_txt, "net IF = %s\n", netif);
fprintf (txlog_txt, "MAC address = ");
for (int i=0; i<6; i++)
fprintf (txlog_txt, "%02x%s", 0xff & macaddr[i], i<5?":" : "");
fprintf (txlog_txt, "\n--\n");
fflush (txlog_txt);
#endif
}
void
bx_null_pktmover_c::sendpkt(void *buf, unsigned io_len)
{
#if BX_ETH_NULL_LOGGING
BX_DEBUG (("sendpkt length %u", io_len));
// dump raw bytes to a file, eventually dump in pcap format so that
// tcpdump -r FILE can interpret them for us.
unsigned int n = fwrite (buf, io_len, 1, txlog);
if (n != 1) BX_ERROR (("fwrite to txlog failed, io_len = %u", io_len));
// dump packet in hex into an ascii log file
fprintf (txlog_txt, "NE2K transmitting a packet, length %u\n", io_len);
Bit8u *charbuf = (Bit8u *)buf;
for (n=0; n<io_len; n++) {
if (((n % 16) == 0) && n>0)
fprintf (txlog_txt, "\n");
fprintf (txlog_txt, "%02x ", charbuf[n]);
}
fprintf (txlog_txt, "\n--\n");
// flush log so that we see the packets as they arrive w/o buffering
fflush (txlog);
fflush (txlog_txt);
#endif
}
void bx_null_pktmover_c::rx_timer_handler (void *this_ptr)
{
#if BX_ETH_NULL_LOGGING
/// hey wait there is no receive data with a NULL ethernet, is there....
int io_len = 0;
Bit8u buf[1];
bx_null_pktmover_c *class_ptr = (bx_null_pktmover_c *) this_ptr;
if (io_len > 0) {
BX_DEBUG (("receive packet length %u", io_len));
// dump raw bytes to a file, eventually dump in pcap format so that
// tcpdump -r FILE can interpret them for us.
int n = fwrite (buf, io_len, 1, class_ptr->rxlog);
if (n != 1) BX_ERROR (("fwrite to rxlog failed, io_len = %u", io_len));
// dump packet in hex into an ascii log file
fprintf (class_ptr->rxlog_txt, "NE2K transmitting a packet, length %u\n", io_len);
Bit8u *charbuf = (Bit8u *)buf;
for (n=0; n<io_len; n++) {
if (((n % 16) == 0) && n>0)
fprintf (class_ptr->rxlog_txt, "\n");
fprintf (class_ptr->rxlog_txt, "%02x ", charbuf[n]);
}
fprintf (class_ptr->rxlog_txt, "\n--\n");
// flush log so that we see the packets as they arrive w/o buffering
fflush (class_ptr->rxlog);
fflush (class_ptr->rxlog_txt);
}
#endif
}
#endif /* if BX_NE2K_SUPPORT */
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